/Engine/Source/Runtime/RHI/Public/DynamicRHI.h
Check if PSO Initializers are the same used during PSO Precaching (only compare data relevant for the RHI specific PSO)
virtual bool RHIMatchPrecachePSOInitializers ( const [FGraphicsPipelineStateInitializer](API\Runtime\RHI\FGraphicsPipelineStateInitialize-) & LHS, const [FGraphicsPipelineStateInitializer](API\Runtime\RHI\FGraphicsPipelineStateInitialize-) & RHS )